What it means
F40886 signals a DRIVE-CLiQ communication error inside the drive: data could not be sent from the CX32 controller extension involved to the Control Unit. The fault cause stored with the code is 65 (= 41 hex) — the telegram type does not match the send list. The message value tells you which component and which cause the drive recorded, so the two manuals that describe this code produce one identical picture: one set of causes, one remedy.
Why it appears
- A DRIVE-CLiQ communication error occurred from the CX32 controller extension involved to the Control Unit — the data could not be sent.
- Fault cause 65 (= 41 hex): the telegram type does not match the send list.
What to check
- Read the message value in r0949 (or r2124); it is coded 0000yyxx hex — yy is the component number, xx is the error cause.
- Carry out a POWER ON: switch the drive off and then on again (switch-off/switch-on).
Reading the message value
- The message value contains two items: component number (%1) and fault cause (%2).
- The drive codes them into one word readable in r0949 or r2124: 0000yyxx hex, where yy = component number and xx = error cause.
- For this code the error cause is 65 (= 41 hex): telegram type does not match the send list.
Parameters the manual names
- r0949 (fault value): read the coded message value here to identify the component number and the error cause 65 (= 41 hex) behind this send error.
- r2124 (alarm value): carries the same coded message value for this code.
Acknowledging and restarting
This fault must be acknowledged immediately: the drive coasts down and does not start again until the fault is cleared. The remedy the manuals give is a POWER ON — Carry out a POWER ON (switch-off/switch-on).
The same on every family
Every manual that describes F40886 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS G130, G150 List Manual · p. 1930 |
| S120, S150 | OFF2 | IMMEDIATELY | Internal (DRIVE-CLiQ) communication error (12) | DRIVE-CLiQ Hub Module (Hub) | SINAMICS S120, S150 List Manual · p. 3286 |
The drives this code lives on
F40886 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does fault F40886 mean in SINAMICS drives?
It reports a DRIVE-CLiQ communication error: data could not be sent from the CX32 controller extension involved to the Control Unit. The stored fault cause 65 (= 41 hex) means the telegram type does not match the send list.
How do I clear F40886?
Carry out a POWER ON — switch the drive off and back on again. The fault must be acknowledged immediately, and the drive will not restart until it is cleared.
How do I see which component triggered F40886?
Read r0949 or r2124; the value is coded 0000yyxx hex, where yy is the component number and xx is the error cause. For this fault the error cause is 65 (= 41 hex).
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the F40xxx group · SINAMICS manuals · Siemens manuals